Products and Services Soldering


  • Soldering of electrical components
  • Laser beam soldering in photovoltaics for the electrical interconnection of solar cells


  • Brazing of sensitive inserts in tool industries
  • Brazing in sensor technologies for high temperature applications
  • Brazing of complex sheet metal structural components

Transient-Liquid-Phase Bonding (TLP Bonding)

  • Laser-TLP Bonding as an innovative technique for an overall contact of thermally loaded components

Glass Soldering

  • Large sized, hermetical sealing of glass-glass composites (up to 100 x 100 mm²)
  • Packaging of dissimilar materials for sensor applications (ceramic-glass, silicon-glass)

System Technology and Optical Design for Soldering Applications

  • Optical design of processing optics for soldering and brazing
  • Design of process control algorithms for soldering applications based on pyrometric and camera-based sensors
  • Online quality control during laser beam brazing for the detection of seam defects in the automotive sector


Britten, S. W., Fiedler, W., Olowinsky, A., Gillner, A.:
Extension of the process boundaries for the soldering of elongated interconnectors with a simultaneous energy deposition
Journal of Laser Applications 27 (S2), 22005 (2015)

Mincuzzi, G., Vesce, L., Schulz-Ruhtenberg, M., Gehlen, E., Reale, A., Di Carlo, A., Brown, T. M.:
Taking temperature processing out of dye-sensitized solar cell fabrication: Fully laser-manufactured devices
Adv. Energy Mat. 4, 1400421 (8 S.) (2014)

Britten, S., Olowinsky, A. Gillner, A.:
Stress-minimized laser soldering of h-pattern multicrystalline silicon solar cells
Physics Procedia  41, 153-163 (2013)

Ungers, M., Fecker, D., Frank, S., Donst, D., Märgner, V., Abels, P., Kaierle, S.
In-situ quality monitoring during laser brazing
Physics Procedia 5, Nr 2, 493-503

J. Diettrich, J. Stollenwerk, M. Kogel-Hollacher, M. Traub, C. Schnitzler
Coaxial laser brazing head
Proceedings of the Fifth International WLT-Conference on Lasers in Manufacturing 2009, Munich, June 2009
Stuttgart: AT Fachverl.
1-5, 2009